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- Unit 08: Ecosystems
- In 1977, researchers discovered
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Card 61 / 112: In 1977, researchers discovered hot springs 2.5 km deep. Surrounding these hot springs were a diverse group of animals including giant tube worms, giant clams, and mussels. The researchers found that the food web began with a bacterial species. The sun's rays can only penetrate approximately 300 m below the surface of water; therefore, the bacteria were not photosynthesizing. Instead the bacteria used hydrogen-sulfide from the hot springs to make their own food. These bacteria would be considered which of the following?
A)
Consumers
B)
Autotrophs
C)
Heterotrophs
D)
Photosynthesizers
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Attribution:
Olivia D'Ambrogio Introduction to Evolutionary Biology and Ecology. (The Saylor Academy 2014), http://www.saylor.org/courses/bio102/ (Accessed 16 May, 2014). License: Creative Commons BY-NC-ND
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